Cyclooctanone oxime serves as a key intermediate in organic synthesis, particularly in Beckmann rearrangement reactions that convert cyclic oximes to corresponding lactams. These lactams are used in the production of specialty polymers, such as polyamides with medium-sized rings. It is also employed in the development of fine chemicals, pharmaceuticals, and other niche organic transformations where the eight-membered ring structure provides unique steric constraints and reactivity.